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Letter to Fabius, cited in Eusebius, Church History VI 43.11. Translated by Arthur Cushman McGiffert. From Nicene and Post-Nicene Fathers, Second Series, Vol. 1. Edited by Philip Schaff and Henry Wace. (Buffalo, New York: Christian Literature Publishing Co., 1890.) Revised and edited for New Advent by Kevin Knight.
Toner, Patrick. "Exorcist"The Catholic Encyclopedia. Vol. 5. New York: Robert Appleton Company, 1909. 21 May 2014 .
Cyril of Jerusalem. Catechetical Lecture 20 (or On The Mysteries, Lecture 2). Translated by Edwin Hamilton Gifford. From Nicene and Post-Nicene Fathers, Second Series, Vol. 7. Edited by Philip Schaff and Henry Wace. (Buffalo, New York: Christian Literature Publishing Co., 1894.) Revised and edited for New Advent by Kevin Knight.
Scannell, T. (1908). "Catechumen" in The Catholic Encyclopedia. New York: Robert Appleton Company. Retrieved May 21, 2014 from New Advent.
Toner, Patrick. (1909). "Exorcism" in The Catholic Encyclopedia. New York: Robert Appleton Company. Retrieved May 21, 2014 from New Advent.
Augustine of Hippo. On Marriage and Concupiscence (Book II). Paragraph 50. Translated by Peter Holmes and Robert Ernest Wallis, and revised by Benjamin B. Warfield. From Nicene and Post-Nicene Fathers, First Series, Vol. 5. Edited by Philip Schaff. (Buffalo, New York: Christian Literature Publishing Co., 1887.) Revised and edited for New Advent by Kevin Knight.
vatican.va
Paul VI. Ministeria quaedam, II: "The orders hitherto called minor are henceforth to be spoken of as 'ministries'."